Power plug having solering tails of a contact terminal and a sleeve terminal projecting outside a body

Abstract

A power plug includes a base body which has a mating pillar and two propping flanks oppositely extending outward from a bottom end of the mating pillar, an electrical terminal inserted downward in the mating pillar, a sleeve terminal having a contact sleeve put around the mating pillar, and a fastening member defining an assembling hole through which the mating pillar with the contact sleeve passes to make the fastening member abut on the propping flanks. Then the fastening member and the propping flanks are fixed together. A positioning gap forms at the joint of the propping flanks. The electrical terminal has a soldering plate projecting downward out of the bottom end of the mating pillar. A soldering tail protrudes downward from a bottom edge of the contact sleeve to be positioned in the positioning gap, with a bottom thereof projecting under the base body.

What is claimed is: 
     
       1. A power plug, comprising:
 a base body having a columned mating pillar placed vertically, a bottom end of the mating pillar oppositely extending outward along a radial direction of the mating pillar to form a pair of propping flanks, a positioning gap forming at the joint of the pair of propping flanks; 
 an electrical terminal inserted downward in the mating pillar of the base body, the electrical terminal having a soldering plate which penetrates through the bottom end of the mating pillar to partly project out of the base body; 
 a sleeve terminal having a cylindraceous contact sleeve put around the mating pillar of the base body, a soldering tail protruding downward from a bottom edge of the contact sleeve to be partly positioned in the positioning gap, a bottom of the soldering tail further projecting under the base body; and 
 a fastening member of flat board shape defining an assembling hole through which the mating pillar of the base body together with the contact sleeve passes to make the fastening member abut on the propping flanks, then the fastening member and the propping flanks being fixed together to further secure the sleeve terminal and the base body together. 
 
     
     
       2. The power plug as claimed in  claim 1 , wherein each propping flank of the base body defines at least one fastening aperture vertically penetrating therethrough, the power plug further includes at least two fastening elements passing upward through the respective fastening apertures to fix the fastening member and the propping flanks together. 
     
     
       3. The power plug as claimed in  claim 2 , wherein the fastening element is a screw. 
     
     
       4. The power plug as claimed in  claim 1 , wherein the mating pillar of the base body defines a mating hole and a pair of receiving fillisters of which each extends vertically to penetrate through a top of the mating pillar, the receiving fillisters are located at two sides of the mating hole along a radial direction of the mating hole and communicated with the mating hole, bottoms of the receiving fillisters are connected together and then penetrate downward through the bottom end of the mating pillar to form a rectangular through slot, the soldering plate of the electrical terminal is substantially of rectangular shape and inserted downward in the through slot, two ends of a top edge of the soldering plate extend upward and are inclined towards each other to form a pair of contact arms located in the receiving fillisters, top ends of the contact arms elastically project into the mating hole. 
     
     
       5. The power plug as claimed in  claim 4 , wherein two side edges of the soldering plate protrude outward to form a plurality of barbs resisting against inner sides of the through slot. 
     
     
       6. The power plug as claimed in  claim 1 , wherein an outer periphery of the mating pillar of the base body is concaved inward to form a cylindraceous restraining groove for restraining the contact sleeve of the sleeve terminal therein.